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Cool Silk (COOLSILK) 90/10 Silk-Viscose Cooling Yarn for Socks and Knitwear
Cool Silk (COOLSILK) is a compact-spun 90% viscose / 10% silk cooling yarn for premium socks, fine-gauge knitwear, and next-to-skin textile products. The standard count is 30/1, with custom counts and colors available for wholesale development.
- Mixing rate: 90% viscose / 10% silk
- Count: 30/1 standard; custom counts available
- Color: COOLSILK color card; custom colors available on request
- Process: compact spun
- Packing: carton or plastic bag, 25 kg per package
- Minimum order: 1 kg per color
- Delivery time: stock 1 to 2 days; custom production 3 to 15 days after confirmation
90/10 silk-viscose cooling yarn for premium socks
Cool Silk (COOLSILK) combines 90% viscose with 10% silk to create a 90/10 silk-viscose cooling yarn. The standard count is 30/1. Compact spinning gives the yarn a clean, smooth surface. The yarn suits premium socks, fine-gauge knitwear, and other next-to-skin textile programs.
The blend combines the soft hand of viscose with the smooth touch of silk. As a result, it gives mills another option when a product needs a more refined surface than standard viscose yarn. The final hand feel, cooling sensation, pilling result, and functional performance depend on yarn count, fabric construction, finishing, washing, and the selected specification.
Product specifications
| Item | Specification |
|---|---|
| Product name | Cool Silk (COOLSILK) Viscose/Silk Functional Yarn (90/10) |
| Product type | 90/10 silk-viscose cooling yarn |
| Composition | 90% viscose / 10% silk |
| Standard count | 30/1; custom counts available |
| Spinning process | Compact spun |
| Colors | COOLSILK color card and custom color matching |
| Functional options | Antibacterial, moisturizing, UV-resistant, and anti-pilling options are available for selected specifications |
| Typical applications | Premium socks, fine-gauge knitwear, and next-to-skin textile programs |
| Minimum order | 1 kg per color |
| Stock lead time | Usually 1 to 2 days after confirmation |
| Custom production lead time | Usually 3 to 15 days after confirmation |
| Packing | Carton or plastic bag, 25 kg per package |
| Documents | COOLSILK color card and inspection report |
What the 90/10 blend offers
Viscose provides the main body and softness of the yarn. Silk adds a smoother touch and a more refined surface. Therefore, the 90/10 blend suits products that need a silk-blend feel without using a pure-silk yarn.
We position Cool Silk for cool-touch socks and lightweight knitwear. However, the yarn composition alone does not determine the final result. Fabric gauge, stitch structure, dyeing, finishing, and washing can all change the way the product feels during wear.
For that reason, buyers should approve the yarn in the actual fabric construction. A small knitting trial can confirm surface appearance, hand feel, machine performance, and the suitability of the selected count.
For more information about silk in cooling textile products, read our article on how silk is used in cooling textiles.
How compact spinning affects the yarn surface
Cool Silk uses compact spinning to control the fiber bundle during yarn formation. In practice, this gives the yarn a cleaner and smoother surface.
The clean surface can support clearer stitch definition and a more refined appearance in socks and fine-gauge knitwear. It can also reduce visible fuzz, although the finished result depends on yarn count, machine settings, fabric structure, and finishing.
When buyers check pilling or surface hairiness, they should compare finished fabrics made under the intended production conditions.
Cool Silk compared with standard viscose yarn
| Evaluation point | Cool Silk 90/10 | 100% viscose yarn | Other functional viscose blends |
|---|---|---|---|
| Fiber blend | 90% viscose and 10% silk | 100% viscose | Depends on the selected blend |
| Hand feel | Soft, smooth, and suitable for a refined surface | Soft hand feel with no silk component | Varies according to fiber content and finishing |
| Surface appearance | Compact spinning supports a clean surface and clear stitch definition | Depends on the spinning process and finishing | Depends on the yarn structure and additive system |
| Functional options | Antibacterial, moisturizing, UV-resistant, and anti-pilling options are available for selected specifications | Usually depends on additional processing or finishing | Depends on the supplier and selected grade |
| Minimum order | 1 kg per color | Depends on the product and color | Depends on the supplier and specification |
| Lead time | Stock orders usually ship in 1 to 2 days. Custom production usually takes 3 to 15 days | Depends on stock and color availability | Depends on the selected blend and production schedule |
| Documents | COOLSILK color card and inspection report | Depends on the supplier | Request the current specification and supporting documents |
Functional options and final-fabric testing
We can prepare selected specifications with antibacterial, moisturizing, UV-resistant, or anti-pilling options. However, test the finished fabric or garment before making any performance claim. Use a test method that matches the buyer’s market and product requirements.
For example, an antibacterial yarn setup does not automatically support an antibacterial claim on the final sock. Test the knitted fabric with the method required by the buyer or destination market. The same principle applies to UV resistance, pilling control, and other functional claims.
Before bulk production, confirm the yarn specification, fabric construction, test method, and required wash conditions. Our antibacterial yarn testing guide explains the standards commonly considered for this type of claim.
Applications
Cool Silk mainly serves premium socks and other close-to-skin products. The 30/1 count also suits fine-gauge knitting when the yarn specification matches the machine and fabric structure.
- Premium socks
- Fine-gauge knitwear
- Next-to-skin garments
- Lightweight spring and summer textile programs
- Soft-touch accessories and other close-contact products
Before sampling, share the machine type, fabric structure, target hand feel, and finished product use. This information helps determine whether the standard 30/1 count or a custom count fits the project.
Working with VI-TEX on Cool Silk
VI-TEX supplies Cool Silk according to yarn count, color, order quantity, packing requirements, and delivery schedule. The standard specification uses 90% viscose and 10% silk with compact spinning and a 30/1 count. Buyers can also discuss custom counts when the standard count does not match the required gauge or fabric weight.
The 1 kg per color minimum gives wholesalers a practical way to test a shade before placing a larger order. Stock colors usually ship within 1 to 2 days after confirmation. Custom colors and production orders usually take 3 to 15 days after the team confirms the specification and color.
Each order can include the COOLSILK color card and an inspection report. If a supplier approval process requires company certifications or patent documents, request the current documents for the selected product and order.
VI-TEX has worked in functional yarn research and development, production, and spot supply since 2003. For buyers, the useful starting point remains the product specification: count, color, quantity, packing, and the required finished-fabric performance.
Wholesale terms and pricing
VI-TEX quotes according to the yarn specification and order quantity. Therefore, the final price depends on count, color, packing format, order volume, and whether the order uses a stock or custom specification.
| Order stage | Typical quantity | Best for | Details to confirm |
|---|---|---|---|
| Sample and market test | 1 to 9 kg | Lab tests, sampling, and shade selection | Count, color, and packing |
| Trial wholesale | 10 to 99 kg | First resale batches | Shade standard and delivery window |
| Bulk wholesale | 100 to 499 kg | Stable production programs | Lot planning and shade approval |
| Long-term supply | 500 kg and above | Contract and repeat customers | Forecast and rolling delivery schedule |
If you are comparing a 90/10 silk-viscose cooling yarn supplier, send the required count, colors, quantity, application, and destination market. These details help the team prepare a quotation that matches the required specification.
Packaging and delivery
We normally pack Cool Silk in cartons or plastic bags, with 25 kg per package as the standard packing format. If your warehouse requires another format, confirm it before production or dispatch.
For stock colors, VI-TEX usually prepares the cones for dispatch within 1 to 2 days after order confirmation. Custom colors require shade confirmation before production. Once the team approves the color and specification, custom production usually takes 3 to 15 days.
Verification and documents
Before approving the yarn, check the composition, count, spinning process, color standard, package weight, and delivery terms. Use the same specification on the quotation, sample approval, inspection record, and shipping documents.
For incoming inspection, our guide to verifying sock yarn quality covers packaging, fiber content, yarn appearance, process checks, and document review.
If your program requires a higher silk content, you can also compare the 120s/2 mulberry silk yarn product. The two products serve different specification and cost requirements, so choose according to the intended fabric and end use.
Questions buyers ask about Cool Silk 90/10
Where can I buy 90/10 silk-viscose cooling yarn?
VI-TEX supplies Cool Silk (COOLSILK) 90/10 viscose/silk functional yarn for sampling and wholesale orders. The standard count is 30/1, and buyers can discuss custom counts and colors. The minimum order is 1 kg per color.
What is Cool Silk (COOLSILK) viscose/silk functional yarn?
It is a compact-spun yarn made from 90% viscose and 10% silk. The blend gives the yarn a soft, smooth hand feel, while compact spinning supports a cleaner surface for socks and next-to-skin knitwear.
What does the 90/10 blend offer?
The blend uses viscose as the main fiber and adds 10% silk for a smoother touch. Compared with a pure-silk yarn, it gives mills a different balance of fiber content, hand feel, and product positioning. Final performance depends on the yarn specification and finished fabric.
Which counts are available?
30/1 is the standard count. Custom counts are also available when the buyer needs a different gauge, fabric weight, or hand-feel target. Confirm the required machine and fabric structure before approving the count.
Is Cool Silk only for socks?
No. Premium socks are the main application, but the yarn can also serve fine-gauge knitwear and other next-to-skin textile programs. The suitable count depends on the machine, fabric structure, and finished product.
Which functional options are available?
We can prepare selected specifications with antibacterial, moisturizing, UV-resistant, or anti-pilling options. However, test the finished fabric or garment before making any performance claim. Use a test method that matches the buyer’s market and product requirements.
How should buyers check pilling?
Compact spinning gives the yarn a cleaner starting surface, and an anti-pilling setup can provide an additional control direction. Even so, knitting structure, yarn tension, finishing, and washing also affect the result. Approve pilling performance on the finished fabric rather than on the cone alone.
Why does compact spinning matter?
Compact spinning helps keep the yarn surface clean and smooth. As a result, it can support clearer stitch definition and less visible fuzz in fine-gauge products. Machine settings and fabric construction still need checking during sampling.
What colors can I get?
The COOLSILK color card provides the starting point for color selection. We can also match custom colors on request. For repeat orders, approve the shade standard before production so that later lots can follow the same reference.


















